Analysis of energy efficiency in fading channels under QoS constraints
IEEE Transactions on Wireless Communications
Multi-service transmission in multiuser cooperative networks
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Effective capacity maximization in multi-antenna channels with covariance feedback
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Queueing analysis of a butterfly network for comparing network coding to classical routing
IEEE Transactions on Information Theory
Exploiting cooperative advantages in slotted ALOHA random access networks
IEEE Transactions on Information Theory
Effective capacity maximization in multi-antenna channels with covariance feedback
IEEE Transactions on Wireless Communications
Hi-index | 754.96 |
A wireless communication system in which multiple users cooperate to transmit information to a common destination is considered. The traffic generated by the users is subject to a stringent quality of service requirement, which is defined in terms of the asymptotic decay-rate of buffer occupancy. The performance of this communication system is analyzed, and the corresponding achievable rate-region for the two-user scenario is identified. A simple user-cooperation scheme that improves performance is proposed. This cooperative scheme is shown to significantly enlarge the achievable rate-region of the service constrained communication system, provided that the quality of the wireless link between cooperating users is better than the individual connections from the users to the intended destination. Numerical results further indicate that the gains of cooperative strategies can be substantial. This suggests that cooperation allows for a fair distribution of the wireless resources among active users.